Fonksiyonel TiO₂-SP/PDMS Kompozit Süngerlerin Hazırlanması ve Boya, Metal, Yağ Giderimi Uygulamaları

Yıl 2025, Cilt: 6 Sayı: 2, 215 - 233, 29.11.2025

Esma Mutluturk

https://doi.org/10.63716/guffd.1679641

Öz

Bu çalışmada, çevresel açıdan zararlı metilen mavisi boyası, metal iyonları ve yağların giderimi amacıyla, çok işlevli ve sürdürülebilir bir kompozit sünger sistemi geliştirildi. Titanyumdioksit (TiO₂) partikülleri, izosiyanat uç grubu taşıyan silan ajan (IPTMS) ile yüzey modifikasyonu ardından ışığa duyarlı spiropiran molekülü ile fonksiyonelleştirilerek TiO₂-SP yapısı elde edildi. TiO₂-SP partiküllerinin sulu ortamlardan kolayca geri kazanımını sağlamak amacıyla, polidimetilsiloksan (PDMS) sünger matrisi içerisinde homojen bir şekilde dağıtılarak gözenekli ve esnek yapıda makroskobik kompozit süngerler (TiO₂-SP/PDMS)hazırlandı. Süngerlerin yapısal özellikleri ATR-FTIR spektroskopisi, morfolojik yapısı taramalı elektron mikroskobu (SEM), hidrofobik özellikleri su temas açısı ölçümleri ve mekanik özellikleri sıkıştırma testleri ile karakterize edildi. Üretilen TiO₂-SP/PDMS kompozit süngerler, 1 gram başına % 25,1 ± 8,1 metilen mavisi giderimi ve 4,51 mg•g⁻¹ Cu²⁺ iyonu adsorpsiyon kapasitesi ile etkili bir performans sergiledi. Temas açısı ölçümleri sonucunda, sünger yüzeylerinin suya karşı ortalama 129,2 ° temas açısı ile belirgin bir hidrofobik karakter sergilediği tespit edilmiştir. Ayrıca, TiO₂-SP/PDMS kompozit süngerlerin hekzan, silikon yağı, diklorometan, ayçiçeği yağı ve toluen absorpsiyon kapasiteleri sırasıyla yaklaşık %338, %245, %284, %256 ve %366 olarak ölçülmüştür. Tüm bu sonuçlar, geliştirilen TiO₂-SP/PDMS kompozit süngerlerin, boya ve metal iyonlarının giderimi ile yağ-su ayırımı gibi çeşitli çevresel uygulamalarda alternatif bir malzeme olarak önemli katkılar sunma potansiyeline sahip olduğunu ortaya koymaktadır.

Anahtar Kelimeler

Boya ve metal giderim , Yağ-su ayırma , Poldimetilsiloksan , Spiropran

Kaynakça

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